A new COVID variant is spreading rapidly and could soon become the dominant variant around the globe. The variant, called XEC, was first detected in Germany in August and appears to have a growth ...
Pfizer's and Moderna's formulas have been the go-to on pharmacy shelves, but Novavax remains an important option.
Catching the virus that causes COVID-19 or getting a COVID-19 vaccination gives you protection, also called immunity, from the virus. But over time, that protection seems to ...